1994 BMW 325i Crank position sensor

130-
3
6



FUEL
INJECTION

Pin



1
Signal



1
Componentffunction



1
Signal

1



output



Ignition
coil
control,
cyl
.
2



Primary
signal,
ignition
coil
2

2



output



Ignition
coil
control,
cyl
.
4



Primary
signal,
ignitioncoil
4

3



output



Ignition
coil
control,
cyl
.
6



Primary
signal,
ignition
coil
6
4
ground
Ground



Ground

5



output



Fuel
injectorcontrol,
cyl
.
2



Pulsed
ground
(injection
pulse
width
in
ms)
cyl
.
2
6



output



Fuel
injectorcontrol,
cyl
.
1



Pulsed
ground
(injection
pulse
width
in
ms)
cyl
.
1

7



output



Mass
air
flow
meter



Mass
air
meter
signal

8



input



Mass
air
flow
meter



Mass
air
meter
signal

9



output



Instrument
cluster



Fuel
consumption
signal

10



output



Engine
coolant
temperature
(ECT)
sensor



ECT
signal

11



output



Fueltankpressure
sensor



Fueltankpressure
sensor
control

12



input



Throttleposition
sensor
(TPS)



Throttleposition
signal

13
-

14



input



Intake
air
temperature
(IAT)
sensor



Intake
air
temperature
signal

15



Traction
control



AST
module

16



input



Automatic
climate
control



Automatic
climate
control

17

18



input



Electronic
immobilizer
control
(EWS
II)



Electronic
immobilizer
control
(EWS
II)
module

19



Automatic
climate
control



Automatic
climate
control

20



-



Instrument
cluster



Instrument
cluster

21



output



Camshaft
actuator
(VANOS
solenoid)
control



Camshaft
actuator
(VANOS
solenoid),
switched
ground

22



output



Fuel
injectorcontrol,
cyl
.
3



Pulsed
ground
(injection
pulse
width
in
ms)
cyl
.
3

23



Fuel
injectorcontrol,
cyl
.
6



Pulsed
ground
(injection
pulse
width
in
ms)
cyl
.
6

24



Fuel
injectorcontrol,
cyl
.
4



Pulsed
ground
(injection
pulse
width
in
ms)
cyl
.
4

25



output



Oxygen
sensor
heater
control



Oxygen
sensor
heater
ground

26



input



Power
supply
(terminal
30)



Battery
voltage(B+)
at
all
times

27



output



Idle
speed
control
valve



Pulsed
ground-open
signal
(see
also
pin
53)

28
ground
Ground



Ground
29



output



Ignition
coil
control,
cyl
.
1



Primary
signal,
ignition
coíl
1

30



output



Ignition
coil
control,
cyl
.
3



Primary
signal,
ignition
coil
3

31



output



Ignition
coil
control,
cyl
.
5



Primary
signal,
ignition
coil
5

32
ground
Ground



Ground
33



output



Fuel
injector
control,
cyl
.
5



Pulsedground
(injection
pulsewidth
in
ms)
cyl
.
5

34
ground
Ground



Ground
35



output



Secondary
air
injection



Secondary
air
injection
pump
relay
control

36



output



Engine
speed
output



Engine
speed
signal

37
-

38



ground



Knock
sensor



Shielding
for
knock
sensors

39



output



Intake
air
temperature
sensor
(IAT
Sensor)



Voltagesupply
to
IAT
sensor
and
ECT
sensorEngine
coolant
temperature
(ECT)
sensor

40



output



Crankshaft
position
sensor
(Hall
effect)



Crankshaft
position
sensor
control

41



ground



Camshaft
position
(CMP)
sensor



Shielding
for
CMP
sensor

42



output



Throttle
position
sensor
(TPS)



TPS
ground

43



input



Camshaft
position/rpm
sensor



Camshaft
position/rpm
sensor
control

44



output



Throttle
position
sensor
(TPS)



Voltagesupply
to
TPS
(5
VDC)

45



Traction
control



AST
module
46



-



Instrument
cluster



Instrument
cluster

ECM
PIN
ASSIGNMENTS

Table
I.
ECM
Pin
Assignment-Siemens
DME
MS
41
.1

Table
I
.
ECM
Pin
Assignment-Siemens
DME
MS
41
.1
(continued)

Pin



I
Signal



I
Component/function



1
Signal

FUEL
INJECTION



130-
37

47
-

48



input



Crankshaft
position
sensor
(Hall
effect)



Crankshaft
position
sensor
control

49



input



Power
supply
(terminal
15)



Batteryvoltage
with
key
onor
engine
running
50



output



Solenoid
valve
(running
losses)



Running
losses

51



output



Carbon
canister
valve



Carbon
canister
valve
control

52vacant
-

53



output



Idle
speed
control
valve



Pulsed
ground-close
signal
(seealsopin29)
54



input



Power
supply



Battery
voltagefrom
main
relay
(terminal
87)

55
vacant
-

56
-

57



input



Knock
sensor
(cyl
.
1-3)



Knock
sensor
input
Signal

58



output



Knock
sensor
(cyl
.
1-3)



Knock
sensor
control

59



input



Knock
sensor
(cyl
.
4-6)



Knock
sensor
input
Signal

60



input/output



Diagnostic
connector
(TxD)



Diagnostic
TxD
(transmit)
signal
to
pin
18
in
Data
link
connector
61



output



Oxygen
sensor
heater
(monitoring
sensor)



Oxygen
sensor
heater
ground

62



output



Secondary
air
injection



Secondary
air
injection
control
valve

63



output



Knock
sensor
(cyl
.
4-6)



Knock
sensor
control

64



input



Camshaft
position/rpm
sensor



Camshaft
position/rpm
sensor
control

65



input



Camshaft
position/rpm
sensor



Camshaft
position/rpm
sensor
control

66
-

67



output



Oxygen
sensor



Oxygen
sensor
reference
voltage

68



output



Evaporative
purge
valve
control



Pulsed
ground
with
engine
at
normal
temperature
and
varyingengine
load

69



output



Fuel
pump
relay
control



Fuel
pump
relay
switches
with
engine
runningorcranking
(crankshaft
position
signal
must
be
present
for
relay
switchover)

70
vacant
-



-

71



output



Oxygen
sensor
heater
(regulating
sensor)



Oxygen
sensor
heater
ground

72



output



Oxygen
sensor
(monitoring
sensor)



Oxygen
sensor
referencevoltage

73



input



Main
relay
control



Main
relay
activation
(terminal
85)

74



output



A/C
compressor
control



A/C
compressor
relay
control

75



input



Oxygen
sensor



Oxygen
sensor
signal

76



not
used



-



-

77



input



Oxygen
sensor
(regulating
sensor)



Oxygen
sensor
signal

78



input



Oxygen
sensor
(monitoring
sensor)



Oxygen
sensor
signal

79



output



Oxygen
sensor
(regulating
sensor)



Oxygen
sensor
referencevoltage

80



Traction
control



AST
module

81



Traction
control



AST
module
82



Traction
control



AST
module
83



output



Crankshaft
position
sensor
(Hall
effect)



Crankshaft
position
sensor
control

84
vacant
-



-

85



output



Automatic
transmission



Automatic
transmission
control
module

86



input



Automatic
transmission



Automatic
transmissíon
control
module

87



input



Power
supply



Battery
voltage
from
main
relay
(terminal
87)

88



input/output



Diagnostic
connector
(TxD)



Diagnostic
TxD
(transmit)
signal
to
pin
17
in
Data
link
connector

ECM
PIN
ASSIGNMENTS

8
.
Disconnect
main
harness
connector
from
transmission

by
turning
its
bayonet
lock
ring
counterclockwise
.
Re-

move
wiring
harness
from
transmission
housing
.
See
Fig
.
8
.

Fig
.
8
.



Harness
connector
at
automatic
transmission
.

9
.
Where
applicable,
disconnect
harness
connector
from

speed
sensor
at
top
óf
transmission
.

10
.
Disconnect
transmission
cooler
line
clamps
from
en-

gine
.
Disconnect
lines
from
transmission
.

11
.
Support
transmission
with
transmission
jack
.
Remove

reinforcing
cross
brace
(if
applicable)
and
transmission

support
crossmember
.

NOTE-

Note
installation
positionof
support
crossmember
.

12
.
Remove
access
plug
in
cover
plate
on
right
side
of
en-

gine
block
and
remove
torqueconverter
bolts
.
Turn

crankshaft
to
access
boits
.
See
Fig
.
9
.

AUTOMATIC
TRANSMISSION



240-
5

Bellhousing
access
hole

Socket
wrench

Fig
.
9
.



Access
andremove
torque
converter
boits
through
hole
in
bellhousing
cover
.

0

A

fij
13
.
Remove
bellhousing-to-engine
mounting
bolts
.
See



Fig
.
10
.
Transmission-to-engine
Torx-head
mounting
bolts
.
Fig
.
10
.

0012592

TRANSMISSION
REMOVAL
AND
INSTALLATION

Fig
.
19
.
M44
engine
coolant
temperature
(ECT)
sensor
(arrow)
.



Fig
.
22
.
Headlight
ground
at
left
frontof
engine
compartment
(arrow)
.

0012704

Fig
.
20
.
M52
engine
coolant
temperature
(ECT)
sensor
(A)
is
located
beneath
top
enginecover
(B)
and
crankcase
vent
hose
(C)
.

uu12700

Fig
.
21
.
M52
throttle
position
sensor
(A),
idle
speed
control
valve
(B),
and
secondary
air
pump
(C)
.

ELECTRICAL
COMPONENT
LOCATIONS



610-7

00119s4



0013131

uvijijo
Fig
.
23
.
Mainground
at
right
strut
tower
(A)
.
B
is
negative
jumper
con-
nection
.

COMPONENT
LOCA
TIONS

610-12



ELECTRICAL
COMPONENT
LOCATIONS

Table
a
.
E36
Component
Locations

Component



Model
Year



Location



Refer
to

Combination
(Stalk)
Switch



1993-1998



Left
sidesteering
column
(turn
signals/high-low
bean
switch)

Convertible
Top
ActuatingSwitch



1994-1998



Center
console

Convertible
Top
Control
Module



1994-1998



In
lower
left
C-pillar
behind
trim
panel

Convertible
TopEnd
Position
Switch



1994-1998



In
convertible
top
linkage

Convertible
Top
Motor



1994-1998



In
left
sideof
trunk
behind
trim
panel

Convertible
Top
Position



1994-1998



In
convertible
top
linkage
Microswitch
Convertible
Top
Storage
Lid
Lock



1994-1998



In
convertible
top
compartment
left
side
Motor

Convertible
Top
Storage
Lid



1994-1998



Inright
side
convertible
top
storage
lid
latch
Microswitch

Convertible
Top
Storage
Lid
Motor



1994-1998



In
left
side
of
trunk
behind
trim
panel

Coolant
Leve¡
Sensor
(if
applicable)



1992-1998



Bolted
on
radiator,
left
side

Coolant
Temperature
Sensor



1992-1998



Left
front
of
engine/cylinder
head



Fig
.
19
.
Fig
.
20
.

Cooling
Fan
Dual
Switch



1992-1998



Right
side
radiator



Fig
.
18
.

Cooling
Fan
Motor



1992-1998



Behind
front
grill

Crankshaft
Position/RPM
Sensor



1992-1995



At
front
crankshaft
pulley

Crankshaft
Position/RPM
Sensor



1996-1998



Left
rearof
crankcase

Crash
Sensor,
Airbag



1992-1993



On
right/left
frontstrut
tower

Crash
Control
Module



1992



Auxiliary
relay
panel

Crash
Control
Module



1993-1998



Driver's
side
footwell

Crash
Sensor,
Right/Left
Side



1997-1998



Right/left
door
sill
behind
front
seat
Impact
Airbag

Cruise
Control
Actuator



1992-1998



Left
front
of
engine
compartment



Fig
.
7
.

Cruise
Control
Module



1992-1998



Behind
glove
compartment



Fig
.
8
.
Fig
.
9
.

Data
Link
Connector



1992-1998



Right
sideof
engine



Fig
.
7
.

Digital
Motor
Electronics
(DME)



1992-1998



Right
rear
engine
compartment,
behind
bulkhead
panel



Fig
.
7
.
Control
Module

DoorLock
Heater



1993-1994



Left
front
doorhandle
DoorHandle
Switch



1994-1998



left
front
door

Drive-away
Protection
(EWS
II)



1/1995
-
1998



Behind
glove
compartment



Fig
.
8
.
Module



Fig
.
9
.

Dual
Coolant
Temperature
Sensor



1997-1998



Below
intake
manifold



Fig
.
19
.

COMPONENT
LOCATIONS

Fig
.
20
.

Electronic
Immobilizer
Control



(
1/1995-1998
~
Behind
glove
compartment



Fig
.
8
.
Module
(EWS
II)



Fig
.
9
.

Continued

U

64853

F
IGNITION



IGNITION



ENGINE



IGNITION



IGNITION



CAMSHAFT
l
COIL



COILS



I
CONTROL



I



I
COIL2



I



I
COIL4
SHIELD



I



_



SHIELD



I



(
MODULE



I



I



I



POSITION
SENSOR
j



I



-



_j
(DME)



I



-I



I



-I



SHIELD
HALL
I
EFFECT
I
(CAMSHAFT
I



-I
SENSOR

NCA

ELECTRICAL
WIRING
DIAGRAMS
ELE-37

Ground
Distribution

1992-93
(3
of
5)

IGNITION



F_==a
IGNITION
COIL2
I
COIL4



IGNITION



IGNITION



SENSOR
_



CAMSHAFT
_



SHIELD



_



SHIELD



I



(
COIL?



I



(
COILS



SHIELD

I
_I

j



S:
CAMSHAFT
POSITI

POSITION

I



I
HEATED



I
----
I
TRANSMISSION
OXYGEN



CONTROL
I



I
SENSOR



I



I
MODULE
I



I



I



I
(EGS)

HEATED
(OXYGEN
SENSOR
SHIELD

DATA
LINK
CONNECTOR

1993
ONLY

1993



I



m
I
ONLY



m

I



(
PUMP



I



(
HYDRAULIC



I



(
PUMP
I



(
MOTOR



I



(
UNIT



I



(
MOTOR
I



_
I
RELAY



I
-I



I
---I
RELAY

21
_
CAMSHAFT

ONLY

Q
Q
==
CAMSHAFT
POSITION



ENGINE
(SENSOR



I
(CONTROL_
_
SHIELD



I



(
MODULE
I



_
I
(DME)

BRNIO

28

HEATED



r



ENGINE
1



I



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F=_
:
OXYG
a
CRANKSHAFT



CAMSHAFT
G123



I



(
SENSOR



(
POSITION/



I



POSITION



'



(
CONTROL
_



RPM



_



SENSOR



I



I
MODULE
(318SERIES)



I



I



~~
SENSOR



,~SHIELD



I
SHIELD

I

mI



IGNITION
CRANKSHAFT



CAMSHAFT



COIL
POSITION



SHIELD
I
POSITION/
RPM



I
SENSOR



__
_



__



_F



_j
SENSOR



-~SHIELD
I
HEATED



SHIELD
OXYGEN



__



199
:
__~_



NC
SENSOR



ONLY
SHIELD

'~
DATA



HOT



--



TRANSMISSION
LINK



I



I
FILM



I



I
CONTROL
CONNECTOR



I
(AIR



I
(MODULE
I



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M
MASS



I



-I
(EGS)
ETER
361
19

_
NCANCA

BRNIORG

=Y=1

(325
SERIES)

DRIVERS



DRIVERS



DOOR



ABS



F
r
I
''
I



,
WINDOW



I



(
DOOR



I



(
LOCK



I



(
PUMP



SLIP



TRANSMISSION



O
ATP
I



(CONTROL
I



(
CONTROL



LINK
I
(MOTOR
I
IJAMB
I
IHEATER
I
(MOTOR



I



(MODULE
I
(MODULE



CONNECTOR
SWITCH



I



I



I



_
(
RELAY



I



-
_j(PBSIASC)



I



-((
EGS)
Y
Y
YY



---



1sY

84319

1



1



9



1
193



34
28
ENGINE
DRIVERS



MIRROR



DRIVERS



ABS



I-



I
CONTROL
I



,SIDE



I



(
CONTROL
m



I



(
DOOR



I



,
HVDRPULIC



rt
FASC+T



I



(
MODULE
I



(
MIRROR



I



(
SWITCH



I



I
HPNDLE



I



(
UNIT



Z
I


-



(DME)
I



I



_-I



I--ISWITCH
I



_I



_------
```~~~'''



34



32



4



28



I



I
HOT
0'



FILM

ml



2¢



I



I
AITm
rc
z
I
Y
f
ASCtT
IGNITION
I
COILS
I
MPSS

BODY



DRIVERS



INERTIA



TRUNK



PASSENGERS
I



(
ELECTRONICS



I



(
SEAT



I



,
SWITCH



I



(
LID



I



,
MAKEUP
I
(CONTROL
I
(BELT
II



I
(MACRO



I
(MIRROR
I
S-I(ZKEIIVE



I
~
SWITCH



I
v
I



I
v
SWITCH



I
v
SWITCH

RELAY



SUNROOFa



CONVERTIBLE



FRONT



2



DRIVERS
_
,
MODULE



I



(CONTROL



m



I



(
TOP



I



,
DOMELIGHT1



I



(MAKEUP
II



I
(ASSEMBLY
I
(STORAGE
I
(MAP



(MIRROR
PASSENGERS



PASSENGERS
-
I



I



-I



I
LID
LOCK



I



I
READ



I



-(
SWITCH



I



(
BIOS



I



,
DOOR
-



-
MOTOR



-
-
-
-
ASSEMBLY



'I



(MIRROR



I



(JAMB
I



I



I



_I
SWITCH
e



2



4
1



1



-
--CONVERTIBLE



1

I--iMOD
WINDOW



TOP
CONVERTIBLE

I



I
MOTOR

I
-
,P
SEAT
ASSENGERS



I



IDOOR
ENGERS



I
-
~
SESSSENGERS
I
(BELT



I
(JAMB



I
(CONTROL
I



-I
SWITCH



-
(SWITCH



I



SWITCH

PASSENGERS
I
,
SEATBACK
I
_I
IHEATER

t_
G103
(3181)

PASSENGERS
,
SEAT

I
HEATER
-

Ground
Distribution

1994-95
Except
318ti
(2
of
5)

G202



G201

I
I
HANGER
I



I
.I

DATA
LINK



ENGINE



CYL2



CYL4
CONNECTOR



I
-



,CONTROL



I



I
IGNITION



I



I
IGNITION
I



(
MODULE



I



(
COIL



I



(
COIL
1



I



j(ONE)
II



,I



~__-CAMSHAFT



CRANKSHAFT
I
POSITION



I



IOSITIONIRPM
SENSOR



__
SENSOR
55



34



B



2



2



_
_
SHIELD



-
SHIELD
I



I
GRITION
t
I



II
3
_-1
GNITION



__

I



I
COIL



I



I
COIL



HEATED
F-
I___~IGNITION



I



I
(



OXYGEN(
NCA
COILS
I



I
el



I
SENSOR
SHELLD
-~-~~
SHIELD

BRNBRN
BRNIORO

BRN
BRN

RESISTOR

ELECTRICAL
WIRING
DIAGRAMS
ELE-41

BR

HEATED



ENGINE
I
(OXYGEN



I
(CONTROL
I
(SENSOR
-



(MODULE
I
_I



I
-
((ONE)

TRANSMISSION
I
(CONTROL
I



I
MODULE

19
¢
1
38
K

SHIELD
BRN

METER

-1.F~
281
CAMSHAFT



F___~
CRANKSHAFT
I



I
POSITION



I
POSITIONIRPM
I,



SENSOR



L
_
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Ground
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1994-95
Except
318ti
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